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<?php |
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namespace Krtv\Bundle\SingleSignOnServiceProviderBundle\EntryPoint; |
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use Krtv\Bundle\SingleSignOnServiceProviderBundle\Context\AuthenticationContext; |
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use Krtv\Bundle\SingleSignOnServiceProviderBundle\Context\AuthenticationContextFactory; |
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use Symfony\Component\HttpFoundation\ParameterBag; |
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use Symfony\Component\HttpFoundation\Request; |
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use Symfony\Component\HttpKernel\UriSigner; |
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use Symfony\Component\Security\Http\EntryPoint\AuthenticationEntryPointInterface; |
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use Symfony\Component\Security\Core\Exception\AuthenticationException; |
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use Symfony\Component\Security\Http\HttpUtils; |
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/** |
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* Class SingleSignOnAuthenticationEntryPoint |
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* @package Krtv\Bundle\SingleSignOnServiceProviderBundle\EntryPoint |
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*/ |
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class SingleSignOnAuthenticationEntryPoint implements AuthenticationEntryPointInterface |
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{ |
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/** |
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* @var AuthenticationContextFactory |
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*/ |
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private $contextFactory; |
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/** |
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* @var HttpUtils |
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*/ |
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private $httpUtils; |
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/** |
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* @var UriSigner |
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*/ |
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private $uriSigner; |
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/** |
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* @param AuthenticationContextFactory $contextFactory |
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* @param UriSigner $signer |
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* @param HttpUtils $httpUtils |
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*/ |
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public function __construct(AuthenticationContextFactory $contextFactory, UriSigner $signer, HttpUtils $httpUtils) |
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{ |
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$this->contextFactory = $contextFactory; |
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$this->httpUtils = $httpUtils; |
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$this->uriSigner = $signer; |
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} |
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public function start(Request $request, AuthenticationException $authException = null) |
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{ |
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$context = $request->attributes->get($this->contextFactory->getAttribute()); /* @var AuthenticationContext $context */ |
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$options = $context->getOptions(); |
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$targetPathParameter = $options->get('target_path_parameter'); |
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$failurePathParameter = $options->get('failure_path_parameter'); |
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$serviceParameter = $options->get('sso_service_parameter'); |
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$serviceExtraParameter = $options->get('sso_service_extra_parameter'); |
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$loginRequiredParameter = $options->get('sso_login_required_parameter'); |
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$scheme = $options->get('sso_scheme'); |
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$host = $options->get('sso_host'); |
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$path = $options->get('sso_path'); |
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// OTP validate callback should point to /otp/validate/ route on service provider |
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// For example: http://service.provider/otp/validate/ |
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$otpValidateUrl = $context->getOtpValidationPath($request); |
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// Target path is a URL or path to previous URL or it |
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// should be an any route which user should visit after OTP valid check. |
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$targetUrl = $context->getTargetPath($request); |
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// Add extra parameters to Target URL which are marked as proxy parameters. |
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if ($context->getServiceProxy()->count()) { |
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if (strpos($targetUrl, '?') === false) { |
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$targetUrl .= '?'; |
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} |
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$params = array(); |
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foreach ($context->getServiceProxy() as $name => $value) { |
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$params[$name] = $context->getServiceExtra()->get($name); |
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} |
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$targetUrl .= http_build_query($params); |
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} |
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// Sign Target URL to be able verify signature later |
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$targetUrl = $this->uriSigner->sign($targetUrl); |
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// User will be redirected to this route if he isn't authenticated on identity provider |
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// or if identity provider returned invalid response on OTP check. |
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$failureUrl = $context->getFailurePath($request); |
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// Failure URL should contain Target URL to be able catch it if user came back from identity provider |
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if ($failureUrl) { |
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if (strpos($failureUrl, '?') === false) { |
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$separator = '?'; |
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} else { |
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$separator = '&'; |
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} |
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$failureUrl .= sprintf('%s%s=%s', $separator, $targetPathParameter, rawurlencode($targetUrl)); |
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// If failure url is the same with current host we add a login_required=1 parameter |
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// To be able to suppress SSO Authentication attempt. |
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// Make sure that your failure url is accessible as guest. |
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if (strpos($failureUrl, $request->getSchemeAndHttpHost()) === 0) { |
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$failureUrl .= sprintf('&%s=%s', $loginRequiredParameter, $options->get('sso_login_required')); |
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} |
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} |
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$redirectUri = sprintf('%s/?%s=%s', rtrim($otpValidateUrl, '/'), $targetPathParameter, rawurlencode($targetUrl)); |
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// Build SSO login URL. |
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$redirectUri = sprintf('%s://%s%s/?%s=%s', $scheme, $host, rtrim($path, '/'), $targetPathParameter, rawurlencode($redirectUri)); |
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$redirectUri = sprintf('%s&%s=%s', $redirectUri, $failurePathParameter, rawurlencode($failureUrl)); |
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// Append service provider name to root sso login url to be able determine it on identity provider. |
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if ($context->getService()) { |
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$redirectUri .= sprintf('&%s=%s', $serviceParameter, $context->getService()); |
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} |
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// Append all extra parameters to root sso login url |
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if ($context->getService() && $context->getServiceExtra()->count()) { |
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$redirectUri .= sprintf('&%s', http_build_query(array( |
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$serviceExtraParameter => $context->getServiceExtra()->all() |
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))); |
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} |
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// Sign data |
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$redirectUri = $this->uriSigner->sign($redirectUri); |
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return $this->httpUtils->createRedirectResponse($request, $redirectUri); |
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} |
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} |
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korotovsky /
SingleSignOnServiceProviderBundle
